Moreover, the expressions of both LYZ and cyclin D1 were also increased respectively after 48 h and 5 d of cell growth of MDA-MB 231 cells in the presence of LED exposure (see Fig. 6A (b)), indicating not only a correlation between tumor progression and light exposure but also that the effects of the RPL treatment could be potentiated on these tumor cells. Here, LYZ is linked to neoplasm.